These are merely the opinions of a genetic dabbler, but from my
perspective the use of NIT1 for a wild-type allele is more useful than for a
dominant allele. There may be multiple wild-type alleles, but they could be
distinguished like any other alleles (NIT1-475 or NIT1-21gr). Dominance, on
the other hand, is not only rarely tested for in Chlamy but is also a
relationship between two alleles and not a permanent attribute of any given
allele.
Dave Mitchell